34145772 has 12 divisors (see below), whose sum is σ = 79673496. Its totient is φ = 11381920.

The previous prime is 34145759. The next prime is 34145779. The reversal of 34145772 is 27754143.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (34145779) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1422729 + ... + 1422752.

It is an arithmetic number, because the mean of its divisors is an integer number (6639458).

Almost surely, 2^34145772 is an apocalyptic number.

It is an amenable number.

34145772 is an abundant number, since it is smaller than the sum of its proper divisors (45527724).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

34145772 is a wasteful number, since it uses less digits than its factorization.

34145772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2845488 (or 2845486 counting only the distinct ones).

The product of its digits is 23520, while the sum is 33.

The square root of 34145772 is about 5843.4383713701. The cubic root of 34145772 is about 324.4235050218.

The spelling of 34145772 in words is "thirty-four million, one hundred forty-five thousand, seven hundred seventy-two".